10561556536 has 16 divisors (see below), whose sum is σ = 19819023840. Its totient is φ = 5276483520.

The previous prime is 10561556497. The next prime is 10561556557. The reversal of 10561556536 is 63565516501.

It is a happy number.

It is a super-2 number, since 2×10561556536² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10561556492 and 10561556501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526381 + ... + 546076.

It is an arithmetic number, because the mean of its divisors is an integer number (1238688990).

Almost surely, 2^10561556536 is an apocalyptic number.

It is an amenable number.

10561556536 is a deficient number, since it is larger than the sum of its proper divisors (9257467304).

10561556536 is a wasteful number, since it uses less digits than its factorization.

10561556536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073694 (or 1073690 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 10561556536 in words is "ten billion, five hundred sixty-one million, five hundred fifty-six thousand, five hundred thirty-six".